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Hello FreeSurfer Developers,
I am attempting to run recon-all on a group of subjects. We no longer have
the raw T1s. Instead, we have their orig.mgz and T1.mgz files from a
previous run of freesurfer. We wish to rerun recon-all using their orig.mgz
or T1.mgz as inputs, using FreeSurfer5.3. What would be the best way to go
about this?
1. I ran recon-all normally, with orig.mgz as the input file. It ran to
completion, but some files are missing from subdirectories. I am not sure
if the outputs are correct, and comparable to other datasets that have
freesurfer outputs that used raw T1s.
2. I converted orig.mgz to orig.nii.gz using mri_convert, and used
orig.nii.gz as input to recon-all. This also ran to completion. However,
because I cannot compare this output to any "true" output, I am unsure if
the outputs are correct, and is the same as using a raw T1 as input.
3. I considered manually starting the recon process from T1.mgz (organizing
subdirectories manually, inserting T1.mgz and orig.mgz into /mri, and
starting autorecon2. I am unsure if this is best, as I am missing nu.mgz,
which is an input file in the first step of autorecon2.
Please let me know what you think, and which method you think would be
closest to using the raw T1s. I've searched the list and it seems that no
one has attempted a similar task. Thank you.
Sincerely,
Melody